Item #:HRN12458
$0.24 per piece
Shipping: One flat fee of $12.95 per online order.
Exclusions apply. Click for details.
Availability:In Stock
Read 7 Reviews

Product Information

Hornady® lead pistol bullets are pre-lubricated and cold-swaged for total uniformity and balance. Our exclusive knurling system retains lubricant over the entire bearing surface to reduce leading in your barrel.

For cowboy shooters, authenticity is a strict requirement. That's why Hornady builds their Cowboy™ bullets to SASS (Single Action Shooting Society) specifications while holding them to the same stringent production standards as all their products.

  • CLASSIC & CONVENTIONAL DESIGN:  Traditional conical and flat designs have perfect symmetry when combined with knurling at the base of the bullet, which deliver increased stability and accuracy. This ensures proper positioning in authentic revolvers, with no unwanted nicking of primers as the cylinder turns.
  • SPECIAL KNURLING AND GREASE RING:  The knurling system holds an even distribution of lubricating wax over the bearing surface of the Cowboy™ bullet, resulting in less leading.

This is not loaded ammunition.


WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov.

Technical Notes

CALIBER:  45 Cal. .454" FP

PRODUCT LINE:  Lead Bullets





APPLICATION:  Varmint < 50 lbs, Target/Match, Personal Defense


ITEM #:  12458

Read 7 Reviews - Average Rating: 4.9 stars

Hornady 255 grain .45 Cowboy

By Lorraine S. on Mar 28, 2023
These shoot lights out in both my three screw and New Blackhawk Ruger Single Action .45 Colt revolvers.

hornady 255 grain

By Robert G. on Feb 17, 2023
Excellent bullets for my 45 colt cowboy loads.
Accuracy is very good, no leading and easy clean up.
Graf and Son's ships very fast.
Extremely pleased with this company.

Best Cowboy Bullet - Target Grade Accuracy

By Stewart L. on Oct 09, 2022
I use these bullets n my Freedom Arms model 97 in 45 Colt with target grade accuracy. I use Hodgdon's maximum data for Trail Boss powder for my best load. The other popular powders work well also, but in my gun Trail Boss works the best. I highly recommend these bullets.

Proper sized bullet for 410/45 guns

By JOSEPH C. on Sep 15, 2022
Being a .454 bullet instead of the now normal ..451-.452 size, fills the shallow rifling on the specialized 410/45 chamber weapons. I found they help them be way more accurate than the smaller bullets by being a tighter fit. Works great in judges and bond pistols.

Great bullet with wide range of applications

By Steve B. on Aug 04, 2022
I've used this Hornady cast bullets for a number of years in revolvers ranging from a period-era Colt Bisley to an English Webley which is loaded with 45 Schofield cartridges with great success. So far, I've never experienced any barrel leading issues & don't expect any if staying with safe-rated reloading data.

Look great!

By Paul B. on Nov 13, 2020
Haven't loaded up any yet, but they look like they will work just fine for my 45 Colt. Bought these on the recommendation of a couple SASS participants that use them and they are thrilled with them in their Colts. Can't wait to get some loaded up and try them out!

Hornady 255 grain .45 Cowboy

By Ian E. on Feb 18, 2019
I love these bullets and have had excellent results in a half dozen .45 Colt revolvers. No leading and easy clean-up at velocities up to 950fps. Soft enough to "slug-up" to oversize throat/barrel dimensions present on some older revolvers. They've even worked great with black powder loads. I just wish Hornady would bring back the 200 grain .44's for use in my .44-40 firearms!
Was this page helpful? Submit your own rating by logging in.